Auto Air Conditioning Compressor Not Engaging

With all the automotive jargons we ve discussed earlier you might think that learning how to manually engage the ac compressor clutch is true rocket science.

Auto air conditioning compressor not engaging. Car air conditioner compressor clutch not engaging published on october 22 2015 october 22 2015 84 likes 13 comments. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. Opening a can of r134a into the system usually overrides the low pressure switch. A faulty automotive air conditioner can be one of the more difficult issues to diagnose and repair.

The clutch compressor is an integral part of the ac system of your car rendering this inoperable is a big inconvenience for the car s passengers. But sure you can t use your car s air conditioning system when this happens. It would be lucky if the ac could blow cool air and the compressor could engage. The main problem is possibly due to a pressure switch or faulty relay.

This switch is located on the metal canister next to the compressor. This problem goes away by simply adding refrigerant. If your car s air conditioner isn t blowing cold air the first thing you should look for are signs of leaking or an a c compressor that does not engage. Low level of refrigerant.

How to manually engage ac compressor clutch. When the switch goes bad it will no longer be able to measure pressure and will leave the clutch engaged the entire time. The low pressure switch tells the car that the clutch needs to engage and disengage and will shut off the a c compressor. If the air conditioning compressor on a late model car does not engage the system is probably low on refrigerant and the low pressure switch prevents the compressor from turning on.

If you re here chances are you ve tried to recharge your ac system and found a compressor clutch not engaging issue. With the engine running turn the a c on max cool set fans high and make sure that the clutch is engaging on the compressor. Here we have simplified three methods of engaging an ac compressor clutch all by yourself. If the clutch engages but the compressor does not turn it means that you probably need a new one.

When diagnosing an air conditioning issue it s easiest to begin at the compressor. The good news is it s not. If so try the troubleshooting techniques described here. What is the most common reason for an air conditioning compressor not to engage.

Engaging the ac compressor clutch at home is not rocket science. If the clutc h compressor doesn t engage there are more possibilities. This is a full explanation of how the system works.